5 ms·

> instead of ever being able to know through the type system that you have a meaningful value. That's... not what I'm looking for out of my type system. I'm mo

by Kamq 3y ago

> instead of ever being able to know through the type system that you have a meaningful value. That's... not what I'm looking for out of my type system. I'm mostly looking for autocomplete and possibly better perf because the compiler has size information. I really hate having to be a type astronaut when I work in scala. So, I mean, valid point. And I do cede that point. But it's kind of like telling me that my car doesn't have a bowling alley.

stouset 3y ago
Making an analogy between a car with a bowling alley being as useful as having the ability to know you have a valid selection from a list of choices does not exactly reflect well on your priorities.
- aatd86 3y ago
  It's not optimal but one can still implement enums in userland using struct and methods returning a comparable unexported type.
- Kamq 3y ago
  I take it you use enums fairly regularly? I don't really use them that much, so they're superfluous for the most part. Sort of like a car having a bowling alley. I mean, I'll take them if it doesn't complicate the language or impact compile time, but if they're doing to do either of those, I'd rather just leave them. Adding default branches into the couple of switch statements and a couple spots for custom json parsing that return errors for values outside the set doesn't seem like a bad tradeoff.
the_gipsy 3y ago
More like a car without ABS and no TC. It's cheaper and you can drive just more carefully, but you're more likely to crash.
- Kamq 3y ago
  I think that's a bad analogy because I actually use ABS and TC. I don't really use an enum heavy style of programming. Maybe twice per project or so. Putting a default branch in a couple switch statements also seems to get me back the same safety (although I'd rather detect the error early and return it in a custom UnmarshalJSON method for the type). I also imagine I'd use a bowling alley in my car ~2 times per year, tops. So that seems like a better analogy to me. edit: I guess I should bring up that I don't use go's switch statement much either, and when I do, 99% of the time I'm using the naked switch as more of an analog to lisp's cond clause.
  - the_gipsy 3y ago
    There are still people that swear that they can brake better than ABS. Until they do a side-by-side test. Re: custom UnmarshalJson implementation - you still have to remember, and do it for every serialized format (e.g. sql). A default case in a switch only solves, well, switching. If a rogue value comes in, it will go out somewhere. E.g. json to sql or whatever things are moving.
    - Kamq 3y ago
      > A default case in a switch only solves, well, switching. If a rogue value comes in, it will go out somewhere. E.g. json to sql or whatever things are moving. I mean, yeah, but eventually you have to do something with it. And the only useful thing you can really do with an enum is switch on it...
  - ParetoOptimal 3y ago
    > I think that's a bad analogy because I actually use ABS and TC. I don't really use an enum heavy style of programming. The point the others are making is you are using a less safe type of programming equivalent to driving without ABS and TC. From your point of view, "TC and ABS is useful so I use it unlike enums". From their point of view though, you are the person not using ABS and TC insisting that they offer nothing useful.
    - 3y ago

by Kamq 3y ago

stouset 3y ago

Making an analogy between a car with a bowling alley being as useful as having the ability to know you have a valid selection from a list of choices does not exactly reflect well on your priorities.

aatd86 3y ago
It's not optimal but one can still implement enums in userland using struct and methods returning a comparable unexported type.
Kamq 3y ago
I take it you use enums fairly regularly? I don't really use them that much, so they're superfluous for the most part. Sort of like a car having a bowling alley. I mean, I'll take them if it doesn't complicate the language or impact compile time, but if they're doing to do either of those, I'd rather just leave them. Adding default branches into the couple of switch statements and a couple spots for custom json parsing that return errors for values outside the set doesn't seem like a bad tradeoff.

the_gipsy 3y ago

More like a car without ABS and no TC. It's cheaper and you can drive just more carefully, but you're more likely to crash.

Kamq 3y ago
I think that's a bad analogy because I actually use ABS and TC. I don't really use an enum heavy style of programming. Maybe twice per project or so. Putting a default branch in a couple switch statements also seems to get me back the same safety (although I'd rather detect the error early and return it in a custom UnmarshalJSON method for the type). I also imagine I'd use a bowling alley in my car ~2 times per year, tops. So that seems like a better analogy to me. edit: I guess I should bring up that I don't use go's switch statement much either, and when I do, 99% of the time I'm using the naked switch as more of an analog to lisp's cond clause.
- the_gipsy 3y ago
  There are still people that swear that they can brake better than ABS. Until they do a side-by-side test. Re: custom UnmarshalJson implementation - you still have to remember, and do it for every serialized format (e.g. sql). A default case in a switch only solves, well, switching. If a rogue value comes in, it will go out somewhere. E.g. json to sql or whatever things are moving.
  - Kamq 3y ago
    > A default case in a switch only solves, well, switching. If a rogue value comes in, it will go out somewhere. E.g. json to sql or whatever things are moving. I mean, yeah, but eventually you have to do something with it. And the only useful thing you can really do with an enum is switch on it...
- ParetoOptimal 3y ago
  > I think that's a bad analogy because I actually use ABS and TC. I don't really use an enum heavy style of programming. The point the others are making is you are using a less safe type of programming equivalent to driving without ABS and TC. From your point of view, "TC and ABS is useful so I use it unlike enums". From their point of view though, you are the person not using ABS and TC insisting that they offer nothing useful.
  - 3y ago